Grinding Journal - Summer 2007 - (Page 29)

Summer 2007 spindle monitors the condition of the grinding head before and during the grinding process and continually compensates for any imbalance. Coolant system helps guarantee success Glass grinding chips are much smaller than metal chips and are difficult to separate from coolant. Paper belt or vacuum filters would not be suitable because they would require intensive maintenance and need frequent replacement. So Mägerle developed a new maintenance-free separator that removes the glass chips from the coolant supply on a continuous basis. A chiller keeps (pictured to the left) Mägerle’s unique “wraparound” hydrostatic ways contributed to achieving a roughness average of less than 80 μinch (2 μm) over the entire glass area, even without the benefit of a temperaturecontrolled grinding room By grinding the optical glass to better than 80 μinch (2 μm) Ra, the optical glass needed much less lapping, thereby reducing overall production time the cleaned coolant – and thus the work area of the machine – precisely within ± 0.2°F (±0.1° C). Another external system cools the grinding spindle motor. Together these systems help keep the workpiece within tolerance – even with grinding times in excess of thirty minutes. Even testing the modified MFP in a nontemperature controlled room, Mägerle was able to demonstrate a roughness average of less than 80 μinch (2 μm) over the entire glass area. The machine can achieve considerably better tolerances under ideal conditions. INFO grinding.com Max Tschopp max.tschopp@maegerle.com http://www.grinding.com

Table of Contents Feed for the Digital Edition of Grinding Journal - Summer 2007

Contents My Thoughts Exactly When Lives Are at Stake Walter Consolidating Production The Art of Grinding: Knowing the Source of Grinding Errors and How to Fix Them The How and Why of Conventional Vitrified Grinding Wheel Selection Grinding Glass Flat Problem Solver

Grinding Journal - Summer 2007

For optimal viewing of this digital publication, please enable JavaScript and then refresh the page. If you would like to try to load the digital publication without using Flash Player detection, please click here.